Backup Scenario

Database 10.2.0.4
OS :Solaris 5.10
I dont have a system to test it now so i am asking it here. My database is in archivelog mode and i have taken the cold backup of my database 3 days back. If my database crashes today can i restore and recover the database from that cold backup till the point it got crashed using all the available archive generated from the time of cold backup till the time of crash.
I am planning of the below steps
1.Restore the full backup
2.startup in mount state;
3.Recover database #will this command will recover the database till the last archive generated
or
4.Recover database using backup controlfile until cancel; #is this command will apply all the archive log till the time of crash. Can any body please explain what happens internally when we fire this command;

You should use 3 instead of 4, as 4 is not required.
What is the difference
3 means
'The information in the current present controlfile is truth and gospel forever amen'
Oracle will recover the database to whatever SCN info is in the controlfile.
This is called complete recovery.
You open the database using alter database open noresetlogs
4 means
'The information in the current present controlfile, is not to be trusted and should be disregarded'.
To what point you recover the database is up to you, you decide whether you run it to completion, or cancel it in a more early stage.
Whatever you do (even if you run it to completion) you should open the database using
alter database open resetlogs
What does resetlogs mean?
There is administration about which (archived) redologs there are and have been in the controlfile.
Resetlogs means: reset this administration.
To paraphrase it: you run on a bridge over a ravine. You manage to get the other side. You see the bridge collapse.
There is no way back.
Sybrand Bakker
Senior Oracle DBA

Similar Messages

Backup scenarios for plan data : DTP to be used ?

Hi,
I have a planning cube to which i have a back up cube, which is a standard cube, and have a one to one transformation between both of them. My scenario is that i want to take a back up of the plan data into this standard cube. Initially i want to take 3 years of plan data and then i would take a weekly backup of the data.My requirement is that once i take a back up of the data, that particular data has to be deleted from the planning cube.

Hi,
you can do the following.
1. backup the data using a transformation
2. write a planning function/sequence which sets all keyfigures of the backup-ed data to zero (in your planning cube).
3. Compress the planning cube.
If you use the variables in the filter in step 1 and 2 this should be safe. If you want this can even be executed in one process chain.
Hope this helps
Regard Matthias Nutt

Backup scenarios for .mts footage

Page 72 of "Final Cut Express 4" by Tom Wolsky suggests copying 4 or 8 GB cards to DVD for backup. Is this up to date information? Or would you all now recommend copying them to external drives and setting up a backup on another drive?
My current scenario is a 1 TB external media drive as well as a 1TB external backup drive, which are daisy chained. Time Machine does the backup of the media drive and the computer's hard drive to the backup drive.
I have a Panasonic video camera outputting .mts files in HD.
If you recommend copying to the DVDs for storage, how do you back those up? Make 2 DVDs for each memory card? Save a copy of the card to an external drive as well?
I appreciate your help sorting through my options for backup and archive. Thanks!

There are tradeoffs with each ...
Copying to DVD is slow. But if you use high quality media you can expect significant future media life, DVDs are not prone to the kinds of failures that electronic/magnetic media are, and you can easily store the DVDs offsite - another level of backup protection.
Copying to a hard drive is fast & easy. And you can always back up, even to DVD media. But with a hard drive, you have to concern yourself with the risks of failure of the drive, interface, or both; software or operator failure; data corruption, technological obsolescence ...
You might also consider keeping the original SD cards as backup instead of reusing them.

Hot Backup Scenario

My Oracle Version is Oracle 10g
What if i put the tablespace in begin backup mode and forgot to put it in end backup mode ,after 2-3 days i see that it is still in begin backup mode ,but i've deleted the archives for the last two days. Will i be able to put it back in end backup mode.

You will get also errors when stopping and starting db instance:
SQL> alter tablespace system begin backup;
Tablespace altered.
SQL> shutdown immediate
ORA-01149: cannot shutdown - file 1 has online backup set
ORA-01110: data file 1: '+DATAP/p10/datafile/system.256.802195537'
SQL> shutdown abort
ORACLE instance shut down.When starting you must run a RECOVER statement or ALTER ... END BACKUP:
SQL> startup
ORACLE instance started.
Total System Global Area 419430400 bytes
Fixed Size                  2078000 bytes
Variable Size             155192016 bytes
Database Buffers          255852544 bytes
Redo Buffers                6307840 bytes
Database mounted.
ORA-01113: file 1 needs media recovery if it was restored from backup, or END
BACKUP if it was not
ORA-01110: data file 1: '+DATAP/p10/datafile/system.256.802195537'
SQL> recover database;
Media recovery complete.

Creating a Smart Backup

I'm not sure of the best way to do this, be it with Time Machine, Automator or another 3rd party application, but here it goes:
I just got a new computer (MacBook Pro with Snow Leopard) and I would like to set up an automatic backup. I haven't trasferred any files in yet (they're all on my external HD), I wanted to see the best way to go about setting up my backup before moving the files in. Here's what I would like from my backup scenario:
1. Backups of the documents, music, pictures is pretty straight forward, just a smart copy kind of thing that automatically looks for what files are new/modified on my computer and updates everything on the external. I'm not sure if I can do this with Automator, or if one of the commercial apps I saw on the app store (DropSync, DirectorySync, etc)
2. Movies, however, is a bit more complicated. I have around 600GB of movies/TV shows, and don't have room for them all on my computer hard drive (computer is 750GB, external is 1.5TB). In fact, I would like to keep very few of the tv shows on my computer, only really the last one or two seasons. For example, on my external HD has the folder 'Breaking Bad', and within that is 'Season 1', 'Season 2', 'Season 3' and 'Season 4'. However, on my computer I still have the 'Breaking Bad' folder, but only have the folder 'Season 4' since I don't need seasons 1-3 on my computer. When I add a file to 'Season 4' on my computer, I would like the 'Season 4' folder on the external to be updated when I perform a backup/sync. However, this does not mean that the 'Breaking Bad' folder on my computer will be synced to the one on the external, just this subfolder. Can this be done? I'm assuming I'd have to go through and specify paths for all my folders, but there aren't that many shows so that would be ok to do for each season. I believe I'm out of Automator territory here, any suggestions on what I can do?
Also I don't think I would like to use Time Machine since I would like to be able to let friends/other computers take files off my external. I'm told with Time Machine it's not as simple as browsing the finder.

ChronoSync can certainly handle your needs just fine. To start, you can find out more about ChronoSync at the link below:
http://econtechnologies.com/pages/cs/chrono_overview.html
Now regarding your points:
1. ChronoSync can do this by setting up a schedule to run as frequently as you wish. ChronoSync does not support 'live syncing' where a file is synced as soon as it is modified, but you can schedule a sync to run as frequently as every minute.
2. I would recommend creating individual sync documents for each subfolder you wish to keep in sync between the two targets. You could then group your sync documents together in a sync container that could be scheduled and run like an individual sync document. You could also just use one sync document and exclude the items you do not wish manually to prevent them from being synced.
I may receive some form of compensation, financial or otherwise, from my recommendation or link.
<Edited by Host>

Took backup of data files and controlfile but not archive file db is 11g xe

took backup of data files and controlfile but not redo file db is 11g xe r2..was trying complete shut backup,..missed redo..
anyway to restore the db back..
I had failed to backup redo log file..
db was shut...properly
any info highly appreciated.
cheers
Edited by: zycoz100 on Feb 27, 2013 4:42 AM

A controlfile create is a fairly trivial task, for either a cold backup or hot backup scenario. Well, its an easy task after you've done the process a few times.
If you have a healthy oracle instance running any place else, preferably at 11gR2, or even a 10g instance can work as an example, get a system connection and do an `alter database backup controlfile to trace;` and the instance will create a new trace file with all SQL commands needed to rebuild the controlfile in the instance trace directory.
Have a look at the trace file, a `show parameter diag` reveals the diagnostic_dest parameter, look for the "trace" directory under that folder, for the latest *trc file. In 10g its `show parameter dump` and the trace file goes straight to the user_dump_dest directory, no digging required.

Backup & Recovery Strategy

Hi Guru's.....
Can anyone share his experience of backup & recovery using BCV (Business Continuity Volumes).
I need to integrate my backup & recovery using BCV's. If you have any document or white paper which can help me , please send me.
Is BCV more efficient , consistent , & reliable than RMAN ???
Please advice.
Regards,
MB

I have used BCVs for backup and cloning. Works quite well.
I think you are not clear on what is a BCV. Simply, a BCV is a third (or fourth or fifth...) mirror in a mirrored RAID array. If you are referring to some sort of file system replication, where the SAN server copies changed data blocks to a second set of volumes, as a BCV, I suspect that someone may be playing fast and loose with the definition of BCV -- at least I have never heard of these replicated volumes as true BCVs. They may be useful for file systems that house flat files, but for database backup and recovery, they are useless -- I sure would not bet my job on them.
A simple oracle backup scenario using BCVs would be something like.
0) demount the BCVs from alternate mount points (if so mounted)
1) resilver the BCVs
2) put the database in hot backup mode
3) switch logfile
4) quiesce database writing
5) split the BCVs
6) un-quiesce database writing
7) take the database out of hot backup mode
8) switch logfile
9) backup the control file to a named file -- not to trace , init.ora file, and password file (if used).
a) backup the archived redo logs.
b) mount the BCVs to alternate volume names or to a different server
c) backup the BCVs to tape or ...
At the moment you split the BCVs, you have created an instant hot backup, so treat it as such. -- Remember you DO NOT want the online redo log files.
If you split the BCVs without putting the database in hot backup mode you will have what is essentially a copy of a crashed database. So if you use it to restore for DR, you will be starting up in crash recovery mode.
A (fourth) BCV can be useful for cloning a large production database for testing.

.Mac Backup vs Time Machine

Not sure I've got this figured out. Do I use both .Mac's Backup along with TM or do I use one or the other? How/why would I use both?

1) Dot Mac's Backup is extremely flexible in meeting many different user backup scenarios
-Apple provides numerous Quickpicks for easy data type and Application's data backup selections
-Easily configurable for any single data item to numerous data items to be backed up
-Can create multiple backup Plans each with their own backup time schedule
-Any Plan can backup to a combination of media each with their own backup schedule
-Can backup in compressed form to a user's .Mac iDisk (requires a .Mac subscription of ~$100/year)
-Provides a flexible restore feature
-Has a specific .Mac Backup User forum for getting technical help from other users
-Can be used on Mac OS X version prior to Leopard as well as Leopard (Leopard does require Backup v3.1.2)
-The flexibility can confuse a user because of the multiple choices provided
-Provides a traditional Full + Incremental backups and uses backup space less efficient than for Time Machine but does retain data for as long as user wishes to keep it.
-Backup time schedules are done only on a daily basis. That is, a Plan can backup to a specific media only once per day automatically. To perform backups more frequently the user must do so manually.
2) Time Machine (only available with Leopard)
-Apple provides a single interface for controlling what is to be backed up. This is done by a counter intuitive 'exclusion list'
-Time Machine will silently remove backup data (at least in its current form) which may be poorly understood by the user
-Time Machine, once setup, operates in the background automatically and captures data once per hour every day.
-Time Machine is restricted to backing up to HDs only. Backup to optical media and tape for example is not supported.
-Time machine has a easy to use browser for reviewing backups, managing backups, deleting unwanted data from backups and for restoring data.
-The Time Machine browser is tightly coupled with Apple's Address Book, Mail and iPhoto at this time. The Time Machine APIs are known to 3rd party developers for integrating their Apps much like Apple has done for Address Book for example.
-Time Machine User forum for technical help is available
-Time Machine is bundled with Leopard and does not require a .Mac subscription of ~$100/year. Mind you, Backup can be continued to be used after an initial $100 subscription expires.
-Time Machine uses the backup space very efficiently and far more so than does the traditional Backup's Full+Incrementals.
-Time Machine offers a single backup Plan whereas Backup provides numerous Plans. Plans in both can be changed at any time is user so desires.
I'm sure others can chip in with other pros/cons for you. However, this should provide you with a starting point for comparing the two.
BTW - Time Machine and Backup co-exist without issues.

M Appliances: how to do a backup or a way to do it

Hello,
I will realize a replacement of deffect appliance Serie M but I don't want to lost all collecting data.
Do you have a idea?
Thanks for your help.
Regards,
Arnaud

Well...
If I managed to get their approval... i suppose you can do it too...
As said before: you need a long breath and a lot of “argumenting” for it.
I think the strongest argument you can use is the fact they store unique data on the devices without offering the possibility of backup/restore.
In my (and my management's) opinion it's not acceptable that they suggest you have to give up al your historical data for a broken memory module.
If they do not trust their customers in replacing simple hardware components like this, the least that can be done is offering the visit of a qualified support engineer who can/may do such changes.
After all the Ironport hardware is produced by Dell, and certified Dell hardware engineers are present in every (maybe nearly every) country.
The most optimal solution would of course be the possibility to backup and restore the contents of a M series device (including regular backup scenario’s to answer to “the unexpected”)
Keep your head up and, take a deep breath and try to convince your service engineer (over and over again)
Steven

Using two connected time capsules for backup: How?

Hi,
After a big i-Mac problem, I had to reinstall OSX from disc and after, 'restoring' my backup from Time Machine, I discovered that my time machine backups were my data only, NOT software or programmes. :-(
So I had a new imac with no progrmmes at all installed. Long story..... 2 or 3 days of reinstally and restoring work later my imac is 'back to new' with all programmes installed and data all safe.
It's a 2TB imac so I have bought a new 3TB Time Capsule and used time machine to back up the ENTIRE computer this time. Seems so far so good.
My question is what to do with my older 2TB time capsule?
At the moment I have it 'daisy-chain' connected to the 3TB via an ethernet cable and with its internet switched off and in bridge mode, trying to use it just an an external 2TB hard disk.
The new 'main' 3TB one is ethernet connected to my cable modem/router (SBG900)
In addition to my time machine backups to the 3TB, I wanted to backup my entire 2TB imac using Carbon Copy cloner or ChronoSyncon to the second Time capsule, the 2TB one as a 'second' double-safe backup.
I can 'see' both discs using finder and both have 'green lights' and seem to be working well but I can't' 'see' or select the 2TB TC using Chronosync when I try to select that as the destination disc for left-to-right' backup or creation of bootable disk.
I noticed also on the CCC site that it can't backup to a time capsule and that time capsure can't be used as a bootable disk?
Basically, I want to make sure that come my next 'imac crash/failure. that I don't have to spend 2 or 3 days reinstalling everything. I'd love to be able to just 'restore' relatively "easily" from a safe, external disk somewhere and have the computer back to exactly how it was 'pre-crash'.
Am I expecting too much? And what would be the best way to use my older 2TB time capsule?
any help appreciated
Philip

philipfromsa wrote:
I noticed also on the CCC site that it can't backup to a time capsule
It can. Click View all under the Example Backup Scenarios in the help.
and that time capsure can't be used as a bootable disk?
That's correct. But you can back up to it and restore from it.
Basically, I want to make sure that come my next 'imac crash/failure. that I don't have to spend 2 or 3 days reinstalling everything. I'd love to be able to just 'restore' relatively "easily" from a safe, external disk somewhere and have the computer back to exactly how it was 'pre-crash'.
You can do that with Time Machine backups no matter where they are. But you don't boot from them; you start from your Recovery HD and use its installer to restore them to your Mac.
You can also do it with CCC's backups. You just can't boot from them if they're on a network drive.
See Time Machine - Frequently Asked Question #14 for the gory details. In step (f) you can choose a Time Capsule (3rd sample) or a CC or SuperDuper clone (not shown in the sample).

Multihoming Primary/Backup PE MPLS VPN

Hi there,
I kind of stuck of implementing and configuring Primary/Backup scenario for MPLS VPN enviroment.
Currently, only singe CE router connected to 2 PE router, Primary PE and Backup PE in the same POP.
PE-CE IGP is running OSPF. On CE router prespective, how do I achieve primary/backup scenario and on other remote PE, how does MPLS VPN cloud noticed that there is Primary and Backup PE towords this CE router?
Any configuration or sample out there? Appreciate for the help.
regards,
maher

Hello Maher,
I would try to set the interface metric to a higher value for the backup PE. With OSPF->BGP redistribution you should then get a higher MED in BGP making the path less preferable. Example:
interface Serial0/0
description to primary PE
ip ospf cost 100
interface Serial0/1
description to backup PE
ip ospf cost 1000
Alternatively you could modify the MED while redistributiing into BGP:
router bgp 65000
address-family ipv4 vrf VRFname
redistribute ospf 123 vrf VRFname match internal external route-map OSPF2BGP
route-map OSPF2BGP permit 10
set metric 10000
Hope this helps! Please rate all posts.
Regards, Martin

Have iPhone 5 set to back up to iCloud but need both iTunes and iCloud done...

after going from 4s to iphone 5 and dragging and dropping like 15 playlists and about 4300 plus songs there must be a better way.
I backup complete itunes folder, exporting all playlists as xml files i am learning as i went from 3 to 3GS to 4 to 4s and now to a 32gb white 5. while i learned on the 4s to 5 that icloud only does store bought music of which i have a lot but most is my own music ripped from my cd's at AAC 320 VBR.
anyhow problem is i always did itunes manually never auto sync for at least 6-7 years as i did auto sync once on original ipod and learned never again after a wipeout.
so i keep icloud on (under icloud on iphone) and itunes also is checked back up to icloud on"summary page" of iphone when it's plugged into itunes 10.7. i did try changing the settings back and forth but
and hit back up every other day or so using icloud manually in phone. i did the turn one off and other on once or twice but based on time etc. it seemed like it had to start a complete backup tpicloud agoin but checking icloud via broweser (IE 9). but do use itunes daily and manually hit the sync button and rite click my iphone in left column and choose backup daily. I see the backup in preferences so assume it's doing its thing. I use 4 pop3 accounts including terrible icloud mail which is so spotty. it started as @me in july and in august my kids signed up and got @icloud addresses. i see i have them also in email settings under icloud allowing me to send or recieve from either.
none of that matters I just want to know if my dual backup scenario is actually working. apple says its one or the other from their own KB articles. BUT I THINK DIFFERENTLY JUST BY THE RESPONSE MANUALLY.
I see the space taken up by the current iCloud backup I do. I also see the current back up I do manually through iTunes so does any other user here know if this works? I see my "notes" and any changes made today so at least iCloud is picking it up...now how to find if iTunes is doing the same.

no one has doubled up on their backups so they don't lose earlier bought music or expensive audiobooks prior to iTunes 10.3?
or at the least none of the knowledgable people here are familair with doing this?
thank you I have huge library and don't want to manually redo it again for my own music. the store bought apps and music for the most part works from icloud but I defenitely want both options available to me.
thank you

SYS and DATA on same RAID 5 Array

I have a server now with 4 drives; 2 Mirrored SYS, 1 DATA, and 1 Backup.
(The backup one holds a copy of the DATA drive and my GRPWISE database).
I just purchased a new server with SCSI drives, and it comes with 6 73GB
U320 drives, and 2 36GB U160 drives. My question is how should I lay out
my partitions? Should I put my DATA partition on a RAID 5 of the six
drives, and then my SYS on mirrored 36GB drives, or should I just put my
DATA and SYS partitions on the RAID 5 array.
I am mostly concerned about performance, since this server runs
GroupWise, NDS, and all my files...printers...etc.
Also, currently my groupwise database is on my SYS partition, in the
grpwise\gwdom folder...should this database be put on the DATA partition,
or is it safe to have it on the SYS partition?
Thanks!
- Eric

>How many users?
20 total. At most 15 on at any given time.
>Try to keep SYS clean as bad things happen if it fills up.
Currently my SYS drive is 80GB, 1/4 full. 10GB is Mail, 5GB is ****
(Deleting it now), and 5GB is SYS Files. How large should I make the new
SYS drive if I move the GW Databases off it? (Just as a sidenote, I may
be installing ZenWorks, so I would want to have room for that as well.)
> I would keep all the "live" data on one RAID, but split it into SYS,
DATA and MAIL and have all the Groupwise (Domain and PO) on the Mail
volume and then have separate drive(s) for the Backup volume.
If I move groupwise to another partition, should I move the software
directory to, or just the DOMAIN and PO databases?
>Do you also backup to tape/offsite, or is this your only backup?
I do backup off-site incase of fire/flood etc. The reason I keep the hard
drive backup, is for an easier way for me to restore deleted files, as
well as just to have a backup on hand.
The only problem in our backup scenario, which I will admit, is that we
do not have software to backup GroupWise. We used to have Exchange and
used Win2k3 Backup, to back it up, but after recently moving to GroupWise
7, we don't have any software that will work with that, since the cost of
backup software is very expensive for a small company.
However, currently I have been going in remotly on the weekends, and
shutting down GroupWise and copying the GRPWISE folder over to the
offsite backup. I am looking into a way to automate this / a cheaper
backup solution.
> I would keep all the "live" data on one RAID, but split it into SYS,
DATA
> and MAIL and have all the Groupwise (Domain and PO) on the Mail volume
and
> then have separate drive(s) for the Backup volume. Do you also backup
to
> tape/offsite, or is this your only backup?
>
>
> <[email protected]> wrote in message
> news:[email protected]...
> > I have a server now with 4 drives; 2 Mirrored SYS, 1 DATA, and 1
Backup.
> > (The backup one holds a copy of the DATA drive and my GRPWISE
database).
> >
> > I just purchased a new server with SCSI drives, and it comes with 6
73GB
> > U320 drives, and 2 36GB U160 drives. My question is how should I lay
out
> > my partitions? Should I put my DATA partition on a RAID 5 of the six
> > drives, and then my SYS on mirrored 36GB drives, or should I just put
my
> > DATA and SYS partitions on the RAID 5 array.
> >
> > I am mostly concerned about performance, since this server runs
> > GroupWise, NDS, and all my files...printers...etc.
> >
> > Also, currently my groupwise database is on my SYS partition, in the
> > grpwise\gwdom folder...should this database be put on the DATA
partition,
> > or is it safe to have it on the SYS partition?
> >
> > Thanks!
> >
> > - Eric
>
>

What happens to my iphone stuff stored in my icloud account when my iphone is reset or restored to factory settings?

I've been researching how unwanted spyware can impact personal iphone usage. I understand - First iphone must've had a JailBreak happen then a spyware app downloaded, installed and activated for iphone to be compromised but no one has described how to determine IF your iphone HAS suffered an unwanted JailBreak attack or worse. (1) How can you determine if an unwanted JailBreak has actually happened to your iphone? Also, icons for the spyware can be hidden and the best advice I obtained to remove unwanted hidden apps completely was by doing a thorough cleaning using the reset to "Factory Settings" option. No doubts would exist after that cleansing. So going back to factory settings made sense to me until now. Formerly, I had no iCloud account with my previous iphone and now I do. My new upgraded iPhone, MacBook Pro and now my new Mini iPad are now linked together in my new iCloud account. If I were to do a reset to factory settings option then my best "guess" is that the unwanted hidden apps would be removed from my iCloud account too... WHEN... I did a clean backup with my reset cleaned device(s). (2) Is that reset cleaned device(s) backup scenario true? (3) What happens to my iCloud account when the "factory settings option" is activated and how are the linked devices unitedly impacted?

iCloud does not store your apps in any case. The App Store simply recognizes that you have purchased the app in the past and allows you to re-download it onto any device which is signed into the same iTunes account. If you've managed to get an app on your iPhone by some other means then it is only on that one device. A Jailbreak can only happen if you initiated it yourself (unless the phone was second-hand, of course).

How to configure DPM2012R2 to use a private cloud

Hi,
I have configure a private cloud over several MS 2012 R2 servers. I have the storage and all required network done. I then installed DPM 2012 R2 and would like to use the "long term" storage function with the private cloud that I created. Has anyone
managed to get this done? The options in DPM 2012 R2 seems to only allow cloud association with Azure. Is it even possible to configure DPM 2012 R2 to use a private cloud deployment?
Any help with this will be greatly appreciated.
Kind Regards

Thanks for the reply:
How would I be able to do any of the long term storage to disk with second DPM?
My scenario is as follow:
Primary DPM server is onsite with shortterm backup configured to disk. There are several protection groups to allow for different kinds of backup scenarios ie different times, different types of clients, etc. Then there is a "offsite" dpm server with about
40Tb available storage that I'd like to use as a "long term" storage for the currently protected groups. However I'm not extremely proficient with DPM and therefore I'm uncertain how to get this done.
What needs to be achieved is:
Onsite I'd like to keep 14days (currently configured to do so, so no change required)
Offsite I'd like to keep 12months (1 per month for each month) as well as 1 per year for 2 years of all protected groups.
The offsite DPM server has thusfar only been configured as Server 2012 r2 Std and the storage has been allocated to the private cloud. This however doesn't need to stay like this and can be "broken" again and reconfigured. If there are step by step instructions
that you could provide to do this I'd really appreciate.
Kind Regards

Backup Scenario

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